Learn Agentic AI
Kanishk PatelPractical breakdowns of agentic systems, AI workflows, and emerging research — for builders, founders, and curious minds.
| Platform |  | Pricing | Only free issues | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 66 | Founded | 5 months ago | Last Issue | 10 days ago |
| Active | |||||
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learnagentic.substack.comLatest Issues
What Is the Lethal Trifecta?
Five sentences to take with you
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The lethal trifecta is a three-condition pattern behind nearly every successful prompt-injection attack on AI agents this year.
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An agent that has sensitive data access, untrusted-input exposure, a...
Five Harness Anti-Patterns That Quietly Sabotage Coding Agents
Five sentences to take with you
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Most “the agent is dumb” complaints are harness failures in disguise; the model is doing its job and the scaffolding is letting things slip through.
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Five anti-patterns recur across teams: no guide...
Set Up Harness Engineering on Your Python Repo in 30 Minutes
Five sentences to take with you
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You can build a working outer harness around any coding agent in under an hour using five files and three packages.
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The recipe: install
aider-chat, add anAGENTS.mdas a feedforward guide, wir...
Inside the Agent Harnesses of Anthropic, OpenAI, LangChain, and Stripe
Five sentences to take with you
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Four frontier teams (Anthropic, OpenAI, LangChain, Stripe) published their harness designs in the past six months; stripped of branding, the blueprints look astonishingly similar.
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Anthropic splits...
What Is Harness Engineering?
Five sentences to take with you
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The 2026 equation that finally stuck: Agent = Model + Harness, where the harness is every piece of code, config, and runtime around the LLM.
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LangChain moved its coding agent from rank 30 to top 5...
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The writers behind this newsletter.
I build and advise on AI systems that work in the real world — beyond demos, hype, and isolated experiments.
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